CN204567631U - A kind of semi-active type pedal sense simulator - Google Patents
A kind of semi-active type pedal sense simulator Download PDFInfo
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- CN204567631U CN204567631U CN201520158958.3U CN201520158958U CN204567631U CN 204567631 U CN204567631 U CN 204567631U CN 201520158958 U CN201520158958 U CN 201520158958U CN 204567631 U CN204567631 U CN 204567631U
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Abstract
The utility model relates to a kind of semi-active type pedal sense simulator for vehicle novel braking system, and it comprises: brake pedal; For obtaining pedal displacement sensor and the force snesor of pedal signal; Treadle effort simulation piston cylinder; The flow regulating valve of adjustable valve port opening; ECU (Electrical Control Unit); This semi-active type pedal sense simulator can be used as the pedal sense simulation in decoupling type brake system, and its structure is simple, but fast response time, control precisely, pedal sense can be simulated preferably, thus give the feedback that chaufeur one is good, to ensure safety when braking.
Description
Technical field
The utility model belongs to automobile technical field, relates to automobile brake technology, is especially applied to simulating brake pedal sense in regenerative brake.
Background technology
Be born so far from automobile, automobile, while bringing convenience to the life of people, also brings a series of problem.Along with motor vehicle exhaust emission and pollution are on the rise, and become one of outstanding, the most urgent problem of air environment gradually, and the situation of the price change one-tenth rise of finished oil in recent years, whole world non-renewable energy resources day by day reduce, and replace orthodox car to be the undeniable fact with new-energy automobile.Meanwhile, along with increasing of vehicle, traffic accident takes place frequently, the personal casualty caused and property damage number surprising.Therefore, " safety, energy-saving and environmental protection " become three large themes of automobile future development, and brake system, as the important component part directly affecting ride safety of automobile, is exactly the hot subject of people's research always.
For conventional hydraulic brake system, the research and development of each several part is mature on the whole, but have certain limitation for the performance improving brake system further, so Ge great automobile vendor starts to consider new brake actuator, automobile line control brake system is exactly arise at the historic moment in such a case.For the investigation and application of hybrid vehicle being subject to most attention at present, line control brake system has again its special significance, this is because traditional vacuum servo formula brake system is applied on hybrid electric vehicle there is many defects, particularly when vehicle travels with electric-only mode, driving engine cannot provide degree of vacuum for vacuum booster.
Be not mechanically connected between brake pedal and car brake in line control brake system, current brake-by-wire is divided into 2 types, one is electro-hydraulic brake system EHB(electro-hydraulic brake system), another kind is electromechanical braking system EMB(electro-mechanical brake system).Electro-hydraulic brake system retains original brake piping and brake structural as backup oil circuit, and additional certain brake-pressure Generation and control mechanism completes brake-by-wire in addition.The power transmission media such as the hydraulic oil in Conventional braking systems or air are then replaced by electric braking by electromechanical braking system completely, increase electric mechanical braking mechanism, directly form braking on wheel limit.Because the mechanical connection of brake pedal and car brake is disconnected, in order to make chaufeur can obtain road feel in braking procedure, needing to generate road feel according to the input simulation of chaufeur, namely needing to install pedal sense simulator additional.
Pedal sense simulator can be divided into passive type, semi-active type and active.Passive type pedal sense simulator structure is comparatively simple, only utilize spring and damping simulation pedal sense, and spring and damping unadjustable, because the pedal sense curve of reality (relation curve of pedal displacement and treadle effort) is comparatively complicated, therefore passive type pedal sense simulator well can not simulate actual pedal sense, but due to its structure simple, cost is lower, therefore still have application, what the HAS hev system as Bosch company used is exactly passive type pedal sense simulator.Active structure is comparatively complicated, is mostly to be combined with regeneration brake system to design, and because it has active power source, therefore can simulate arbitrary pedal sense, the accuracy of simulation and adjustability good.But because its structure is more complicated with control, and how to be combined with brake system, therefore actually rare.Semi-active type pedal sense simulator is between passive type pedal sense simulator and active pedal sense simulator, although it does not have active power source, but its damping or rigidity adjustable, also can simulate preferably pedal sense by regulating these parameters, owing to not needing active power source, and structure is comparatively simple, therefore cost is lower.
Utility model content
The utility model provides a kind of semi-active type pedal sense simulator, and object is better simulating brake pedal sense, to chaufeur better to feed back, to avoid chaufeur to the erroneous judgement of brake condition and fear, thus ensures braking safety.
For achieving the above object, the utility model provides a kind of semi-active type pedal sense simulator, comprising:
Brake pedal;
The treadle effort be connected with brake pedal simulates piston modules, comprises piston cylinder body, pull back spring, piston push rod and piston, in order to simulate treadle effort; In addition, described piston cylinder body is provided with fluid hole.
Pedal force sensor, is connected with brake pedal, for obtaining the signal of treadle effort; Alternatively, described pedal force sensor integrated installation is on brake pedal.
Pedal displacement sensor, the piston push rod of simulating in piston modules with described treadle effort is connected, for obtaining pedal signal; Alternatively, described pedal displacement sensor integrated installation is on piston push rod.
Flow regulating valve, simulates piston modules with treadle effort respectively and fluid reservoir is connected, adjustable valve port opening; Specifically, the fluid hole that one end and the treadle effort of described flow regulating valve are simulated on the cylinder body of piston modules is connected, and the other end is connected with fluid reservoir, controls the control of electromagnetic switch by ECU (Electrical Control Unit) of valve port opening.
ECU (Electrical Control Unit), receives the signal of pedal displacement sensor and pedal force sensor, sends Signal Regulation flow regulating valve valve port opening.
Described ECU (Electrical Control Unit) is connected with pedal displacement sensor and force snesor, accept the signal of pedal displacement sensor and pedal force sensor, ECU (Electrical Control Unit) interior reservoir has the pedal sense target information needing simulation, also be connected with the flow regulating valve of adjustable valve port opening, flow regulating valve valve port opening is by automatically controlled unit controls simultaneously.
Separately have, described pedal displacement sensor can adopt linear movement pick-up.
For improving the accuracy measured, described pedal displacement sensor adopts two.
Described flow regulating valve valve port adopts triangular groove structure, to improve control accuracy.
Compared with existing pedal sense simulator, the innovation semi-active type pedal sense simulator tool has the following advantages:
1. structure and passive type pedal simulator close, adopt and the similar piston cylinder module of passive type pedal simulator, the basis of passive type pedal simulator is improved, and reliability is high, and cost is low.
2. adopt existing flow regulating valve, avoid from new design, flow regulating valve product is ripe, and reliability is high.
3. when push down on the pedal, by improving regulating frequency, can quite closely simulated target pedal sense, effect is close to active pedal sense simulator.
4. relatively independent with brake system, can be arranged in various different brake system, commonality is better.
5. compared with active pedal simulator, do not adopt active power source to simulate pedal sense, reduce cost, eliminate the hidden danger lost efficacy in active power source, improve reliability.
6. directly utilize the pedal force of chaufeur for the energy, save the energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Label declaration in accompanying drawing:
1-brake pedal; 2-pedal force sensor;
3-pedal displacement sensor; 4,5-control path;
6-ECU (Electrical Control Unit); 7-fluid reservoir;
8-control path; 9-hydraulic tubing;
10-flow regulating valve; 11-fluid hole;
12-piston cylinder body; 13-pull back spring;
14-piston push rod and piston; 15-treadle effort simulation piston modules.
Detailed description of the invention
Below incorporated by reference to Figure of description, the utility model is further illustrated.
As shown in Figure 1, a kind of active pedal sense simulator mainly comprises:
Brake pedal 1;
The treadle effort be connected with brake pedal 1 simulates piston modules 15, comprises piston cylinder body 12, pull back spring 13, piston push rod and piston 14, in order to simulate treadle effort; In addition, described piston cylinder body 12 is provided with fluid hole 11.
Pedal force sensor 2, integrated installation on brake pedal 1, for obtaining the signal of treadle effort.
Pedal displacement sensor 3, integrated installation on piston push rod, for obtaining pedal signal.
Flow regulating valve 10, simulates piston modules 15 with treadle effort respectively and fluid reservoir 7 is connected, adjustable valve port opening; Specifically, the fluid hole 11 that one end and the treadle effort of described flow regulating valve 10 are simulated on the cylinder body of piston modules is connected, and the other end is connected with fluid reservoir 7, controls the control of electromagnetic switch by ECU (Electrical Control Unit) of valve port opening.
ECU (Electrical Control Unit) 6, receives the signal of pedal displacement sensor and pedal force sensor, sends Signal Regulation flow regulating valve valve port opening.
Described ECU (Electrical Control Unit) 6 is connected with pedal displacement sensor 3 and pedal force sensor 2, accept the signal of pedal displacement sensor 3 and pedal force sensor 2, ECU (Electrical Control Unit) 6 interior reservoir has the pedal sense target information needing simulation, also be connected 10 with flow regulating valve, flow regulating valve valve port opening controls by ECU (Electrical Control Unit) 6 simultaneously.
In the present embodiment, brake pedal 1 directly and treadle effort simulate piston modules 15 and be rigidly connected.
Semi-active type pedal sense simulator specific works process of the present utility model is as follows:
(1) simulation during brake pedal 1 is stepped on---chaufeur steps on brake pedal 1, the piston push rod that promotion and brake pedal are connected and piston 14, piston advances forward compression retracteding position spring 13, liquid in plunger shaft is extruded, flow into fluid reservoir 7 from fluid hole 11 through flow regulating valve 10, the power be used on push rod is
(wherein
for the power on piston push rod,
for the elastic force of pull back spring,
for dumping force), treadle effort
pedal force sensor 2 obtains treadle effort, pedal displacement sensor 3 obtains pedal displacement, these two signals are transferred to ECU (Electrical Control Unit) 6 through control path 4 and 5, ECU (Electrical Control Unit) 6 obtains the treadle effort that needs simulation, by comparing with the actual treadle effort that pedal force sensor 2 records, when actual treadle effort is larger by pedal displacement signal, ECU (Electrical Control Unit) 6 sends signal control flow regulating valve valve port opening by control path 8 and increases, thus reduces dumping force
, to reach the object reducing actual treadle effort.When actual treadle effort is less, ECU (Electrical Control Unit) 6 sends signal control flow regulating valve valve port opening by control path 8 and reduces, thus increases dumping force
, to reach the object increasing actual treadle effort.
(2) simulation during loosen the brake 1---when chaufeur loosen the brake 1, piston retreats under the effect of pull back spring 13, degree of vacuum is formed in plunger shaft, liquid in fluid reservoir 7 is got back in plunger shaft through flow regulating valve 10, the power be now used on push rod is, in order to make the rapid return of pedal, now the valve port opening of flow regulating valve 10 is maximum, thus makes dumping force
minimum.Now the effect of this semi-active type pedal sense simulator is similar to passive type pedal sense simulator.
Claims (9)
1. a semi-active type pedal sense simulator, it comprises:
Brake pedal;
The treadle effort be connected with brake pedal simulates piston modules, comprises piston cylinder body, pull back spring, piston push rod and piston, in order to simulate treadle effort;
Pedal force sensor, is connected with brake pedal, for obtaining the signal of treadle effort;
Pedal displacement sensor, the piston push rod of simulating in piston modules with described treadle effort is connected, for obtaining pedal signal;
Flow regulating valve, simulates piston modules with treadle effort respectively and fluid reservoir is connected, adjustable valve port opening;
ECU (Electrical Control Unit), receives the signal of pedal displacement sensor and pedal force sensor, sends Signal Regulation flow regulating valve valve port opening.
2. semi-active type pedal sense simulator according to claim 1, is characterized in that: the piston cylinder body of described treadle effort simulation piston modules is provided with fluid hole.
3. semi-active type pedal sense simulator according to claim 1, is characterized in that: described pedal displacement sensor integrated installation is on piston push rod.
4. semi-active type pedal sense simulator according to claim 1, is characterized in that: described pedal force sensor integrated installation is on brake pedal.
5. semi-active type pedal sense simulator according to claim 2, it is characterized in that: the fluid hole that one end and the treadle effort of described flow regulating valve are simulated on the cylinder body of piston modules is connected, the other end is connected with fluid reservoir, controls the control of electromagnetic switch by ECU (Electrical Control Unit) of valve port opening.
6. semi-active type pedal sense simulator according to claim 1, is characterized in that:
ECU (Electrical Control Unit) is connected with pedal displacement sensor and force snesor, accept the signal of pedal displacement sensor and pedal force sensor, ECU (Electrical Control Unit) interior reservoir has the pedal sense target information needing simulation, also be connected with the flow regulating valve of adjustable valve port opening, flow regulating valve valve port opening is by automatically controlled unit controls simultaneously.
7. the semi-active type pedal sense simulator described in claim 1 or 3, is characterized in that: described pedal displacement sensor adopts linear movement pick-up.
8. the semi-active type pedal sense simulator described in claim 1 or 3, is characterized in that: adopt two described pedal displacement sensor.
9. the semi-active type pedal sense simulator described in claim 1 or 5, is characterized in that: described flow regulating valve valve port adopts triangular groove structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520158958.3U CN204567631U (en) | 2015-03-20 | 2015-03-20 | A kind of semi-active type pedal sense simulator |
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| CN201520158958.3U CN204567631U (en) | 2015-03-20 | 2015-03-20 | A kind of semi-active type pedal sense simulator |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172767A (en) * | 2015-09-30 | 2015-12-23 | 芜湖伯特利汽车安全系统股份有限公司 | Electronic control brake pedal feeling simulation device and control method thereof |
| CN107121054A (en) * | 2016-02-23 | 2017-09-01 | 舍弗勒技术股份两合公司 | The equipment that power simulation is carried out on trailer reversing element, preferably pedal force simulator |
| CN107161122A (en) * | 2017-04-07 | 2017-09-15 | 江苏理工学院 | A kind of brake feel impulse electromagnetic valve adjustable type brake treadle mechanism |
| CN107161120A (en) * | 2017-04-07 | 2017-09-15 | 江苏理工学院 | A kind of Linear adjustable pedal sense simulator and its brake treadle mechanism |
| CN109849876A (en) * | 2018-12-11 | 2019-06-07 | 中国航空工业集团公司成都飞机设计研究所 | A kind of brake assemblies based on pedal feedback, working condition discrimination method, device and storage medium |
| CN110027527A (en) * | 2018-01-12 | 2019-07-19 | 比亚迪股份有限公司 | Pedal simulator and line control brake system, vehicle with it |
| CN110667544A (en) * | 2019-11-14 | 2020-01-10 | 吉林大学 | Automatic pedal feel simulator with adjustable pedal feel |
| CN116101240A (en) * | 2021-11-10 | 2023-05-12 | 长沙泊呈科技有限公司 | Pedal simulator for vehicle braking system and braking method |
-
2015
- 2015-03-20 CN CN201520158958.3U patent/CN204567631U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172767A (en) * | 2015-09-30 | 2015-12-23 | 芜湖伯特利汽车安全系统股份有限公司 | Electronic control brake pedal feeling simulation device and control method thereof |
| CN105172767B (en) * | 2015-09-30 | 2021-04-09 | 芜湖伯特利汽车安全系统股份有限公司 | Electric control brake pedal feeling simulation device and control method thereof |
| CN107121054A (en) * | 2016-02-23 | 2017-09-01 | 舍弗勒技术股份两合公司 | The equipment that power simulation is carried out on trailer reversing element, preferably pedal force simulator |
| CN107161120A (en) * | 2017-04-07 | 2017-09-15 | 江苏理工学院 | A kind of Linear adjustable pedal sense simulator and its brake treadle mechanism |
| CN107161120B (en) * | 2017-04-07 | 2019-08-27 | 江苏理工学院 | A kind of Linear adjustable pedal sense simulator and its brake treadle mechanism |
| CN107161122B (en) * | 2017-04-07 | 2019-09-06 | 江苏理工学院 | A kind of brake feel impulse electromagnetic valve adjustable type brake treadle mechanism |
| CN107161122A (en) * | 2017-04-07 | 2017-09-15 | 江苏理工学院 | A kind of brake feel impulse electromagnetic valve adjustable type brake treadle mechanism |
| CN110027527A (en) * | 2018-01-12 | 2019-07-19 | 比亚迪股份有限公司 | Pedal simulator and line control brake system, vehicle with it |
| CN109849876A (en) * | 2018-12-11 | 2019-06-07 | 中国航空工业集团公司成都飞机设计研究所 | A kind of brake assemblies based on pedal feedback, working condition discrimination method, device and storage medium |
| CN109849876B (en) * | 2018-12-11 | 2022-03-15 | 中国航空工业集团公司成都飞机设计研究所 | Brake assembly based on pedal feedback, working state identification method and device and storage medium |
| CN110667544A (en) * | 2019-11-14 | 2020-01-10 | 吉林大学 | Automatic pedal feel simulator with adjustable pedal feel |
| CN110667544B (en) * | 2019-11-14 | 2024-01-26 | 吉林大学 | Automatic pedal feel simulator with adjustable pedal feel |
| CN116101240A (en) * | 2021-11-10 | 2023-05-12 | 长沙泊呈科技有限公司 | Pedal simulator for vehicle braking system and braking method |
| CN116101240B (en) * | 2021-11-10 | 2024-04-23 | 长沙泊呈科技有限公司 | Pedal simulator for vehicle braking system and braking method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180130 Address after: 200092 Shanghai City, Yangpu District Siping Road No. 1230 Patentee after: Tongji innovation venture Holdings Limited Address before: 200092 Shanghai City, Yangpu District Siping Road No. 1239 Patentee before: Tongji University |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180705 Address after: No. 1239, Siping Road, Yangpu District, Shanghai Patentee after: Tongji University Address before: No. 1230, Siping Road, Yangpu District, Shanghai Patentee before: Tongji innovation venture Holdings Limited |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190416 Address after: 201800 79, 328 Hengyong Road, Waigang Town, Jiading District, Shanghai Patentee after: Shanghai Yu Automotive Technology Co. Ltd. Address before: No. 1239, Siping Road, Yangpu District, Shanghai Patentee before: Tongji University |
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| TR01 | Transfer of patent right |